Thought some of you might be interested in some point source horns that I've been building - two of them so far, S1 and S2. Both prototypes, before I build one that I will actually paint and install flush in some corner bass traps.

This is a 60 x 60 degree horn, it has a B&C DE250 compression driver at the throat and four 5" closed back mids loading the same horn, at the mouth it's half a metre wide. I use DCX for the crossover then it crosses to an Eminence Magnum 18LF 18" woofer with Rythmik subs below. S1 was my first attempt, when I wasn't entirely sure my hornresp sim would work, so I kept it simple.

It measures very nicely!

You can see it controls directivity down to about 500 Hz. It took some time to adjust to the different sound. It's very clear and detailed, clean at very high levels, very dynamic. The narrower dispersion seems to be part of the clarity, being a bit more dry and free from room sound. Ideal for a really bright difficult room.

S2, was the next step, about twice the size - now 1m wide, 45 x 90 degree dispersion with 6 drivers (much harder to mount) and a second flare angle, which prevents beaming. Here it is on my polar measurement rig:

And it measures even better than S1:

At this point the main question in my mind is "what's next?" The final horn will probably get made out of ply and be spray painted glossy red, set flush into a big corner bass trap. But before that, I just might build some more ...

Thought some of you might be interested in some Synergy horns that I've been building - two of them so far, S1 and S2. Both prototypes, before I build one that I will actually paint and install flush in some corner bass traps.

This is a 60 x 60 degree horn, it has a B&C DE250 compression driver at the throat and four 5" closed back mids loading the same horn, at the mouth it's half a metre wide. I use DCX for the crossover then it crosses to an Eminence Magnum 18LF 18" woofer with Rythmik subs below. S1 was my first attempt, when I wasn't entirely sure my hornresp sim would work, so I kept it simple.

It measures very nicely!

You can see it controls directivity down to about 500 Hz. It took some time to adjust to the different sound. It's very clear and detailed, clean at very high levels, very dynamic. The narrower dispersion seems to be part of the clarity, being a bit more dry and free from room sound. Ideal for a really bright difficult room.

S2, was the next step, about twice the size - now 1m wide, 45 x 90 degree dispersion with 6 drivers (much harder to mount) and a second flare angle, which prevents beaming. Here it is on my polar measurement rig:

And it measures even better than S1:

At this point the main question in my mind is "what's next?" The final horn will probably get made out of ply and be spray painted glossy red, set flush into a big corner bass trap. But before that, I just might build some more ...